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Installing two remote controllers for the Air to Air Heat
Exchanger with DX Coil Unit
For details on how to install the remote controller for the Air to Air Heat Exchanger with DX Coil Unit, refer to the
Installation Manual accessory with the remote controller.
How to install
When you want to use two remote controllers, follow the procedure below.
1. Set one remote controller as the header (factory default).
2. Set the other remote controller as the follower using the DIP switch. After that, the remote controller works as
the follower.
2
1
2
1
2
1
2
1
2
1
Remote controller (inside of the
back)
Header remote
controller
Follower remote
controller
Follower remote
controller
Header remote
controller
Follower remote
controller
Header remote
controller
DIP switch
DIP switch
* Set switch 2 to low.
You can control one or multiple Air to Air Heat Exchanger with DX Coil Unit(s) using two remote controllers. (Up
to two remote controllers can be installed.)
12
Advanced system
WARNING
• Use wiring that meets the specifications in the Installation Manual and the stipulations in the local regulations and
laws. Use of wiring which does not meet the specifications may give rise to electric shocks, electrical leakage,
smoking and/or a fire.
• When carrying out electric connection, use the wire specified in the Installation Manual and connect and fix the wire
securely to prevent them applying external force to the terminals. Improper connection of fixing may result in fire.
• Electrical wiring work shall be conducted according to law and regulation in the community and Installation Manual.
Failure to do so may result in electrocution or short circuit.
REQUIREMENT
For the connecting procedure and electric wiring of External Input (sold separately), refer to the Installation Manual of
Remote ON / OFF Adapter NRB-1HE.
1
Connecting to external devices by using remote control interface.
• Air to Air Heat Exchanger with DX coil unit receives ON-OFF signal from external devices such as central
remote control. (Command) Air to Air Heat Exchanger with DX coil unit concurrently sends operating status
signal (operating display, error display). (Reply)
1) Connecting diagram
2) Operating status display for remote control
3) Correspondence to ON-OFF signal from remote control
4) Control priority type can be selected between remote priority control and last command priority
control
TCB-IFCB-4E2
Outdoor unit
Air to Air Heat Exchanger with
DX coil unit
Remote control interface
Local remote controller
Power supply 220-240 V ~
For remote command
For remote reply
TCB-IFCB-4E2
Error display
Operating display
Power supply maximum 240 VAC, 0.5 A
No voltage
ON OFF
Continuous signal
133-EN
134-EN
+00EH99887601-2_01EN.book Page 67 Thursday, September 15, 2016 5:23 PM
